假设你是李明，本周末学校举行的英语角活动，讨论游泳安全问题

Swimming is good for our health,but some places are dangerous and not suitable for swimming.So every time you go swimming,make sure that the place you choose is available.
Second,keep it in mind that ypu should never go swimming alone in rivers.Instead,you should go with your parents or friends.This will reduce the risk of danger.
Third,prepare fully before swimming instead of jumping into the water directly.This will help your body adapt to the cold water.
Moreover,always remember to take care of each other while swimming.Though swimming is a wonderful entertainment,do not stay in water for too long.
Finally,here are some useful tips for you.When choosing your own swimming suit,remember that it should be fit for you.It should be neither too tight nor too loose,and ypu should feel free to move when wearing it.Also,always take a shower after swimming,for the water is not always clean and you may get sick easily.
If you follow my advise,you'll have a nice swimming experience.Thanks for listening!
希望可以帮到你~祝你学习进步！